Delavan Oil nozzle 04000-80B0

The Delavan Oil nozzle 04000-80B0 is a precision consumable component that atomizes fuel oil into a fine spray for efficient combustion in burners. It has a capacity of 40 gallons per hour, a spray angle of 80 degrees, and a flow rate of 0.4 GPH. The spray pattern is type B. This nozzle is identified by manufacturer code 04000-80B0 and article number 345.892.240. It is designed for annual replacement or sooner if combustion issues arise.

Oil nozzles of this type are selected by matching the flow rate (in gallons per hour), spray angle (typically between 30 and 80 degrees), and spray pattern (hollow, solid, or semi-solid) to the burner data plate. Before ordering, compare the existing nozzle's markings with the part number on the burner data plate. Ensure the nozzle thread is clean and tighten the seating to the specified torque during installation.

When oil nozzles of this kind fail or are incorrectly matched, symptoms include sooting, pulsation, unstable ignition, a smoky flame, or oil drip after shutdown. These signs indicate poor combustion and warrant immediate nozzle inspection and replacement.